diff --git a/NEWS.md b/NEWS.md
index bd83f2f8..0926ab60 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,9 @@
-1.23.2 -- 2015-mm-dd
+1.24.0 -- 2015-mm-dd
 --------------------
 
+Announcements:
+ - Upgrades windshaft to 0.34.0 for retina support
+
 
 1.23.1 -- 2015-01-14
 --------------------
diff --git a/lib/cartodb/server_options.js b/lib/cartodb/server_options.js
index f86a9673..2ac87baa 100644
--- a/lib/cartodb/server_options.js
+++ b/lib/cartodb/server_options.js
@@ -15,6 +15,24 @@ if ( _.isUndefined(global.environment.sqlapi.domain) ) {
   }
 }
 
+// Whitelist query parameters and attach format
+var REQUEST_QUERY_PARAMS_WHITELIST = [
+    'sql',
+    'geom_type',
+    'cache_buster',
+    'cache_policy',
+    'callback',
+    'interactivity',
+    'map_key',
+    'api_key',
+    'auth_token',
+    'style',
+    'style_version',
+    'style_convert',
+    'config',
+    'scale_factor'
+];
+
 module.exports = function(redisPool) {
     var redisOpts = redisPool ? {pool: redisPool} : global.environment.redis;
     var cartoData = require('cartodb-redis')(redisOpts),
@@ -659,9 +677,7 @@ module.exports = function(redisPool) {
           return;
         }
 
-        // Whitelist query parameters and attach format
-        var good_query = ['sql', 'geom_type', 'cache_buster', 'cache_policy', 'callback', 'interactivity', 'map_key', 'api_key', 'auth_token', 'style', 'style_version', 'style_convert', 'config' ];
-        var bad_query  = _.difference(_.keys(req.query), good_query);
+        var bad_query  = _.difference(_.keys(req.query), REQUEST_QUERY_PARAMS_WHITELIST);
 
         _.each(bad_query, function(key){ delete req.query[key]; });
         req.params =  _.extend({}, req.params); // shuffle things as request is a strange array/object
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 70e2cadf..18cdbd01 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,6 +1,6 @@
 {
   "name": "windshaft-cartodb",
-  "version": "1.23.2",
+  "version": "1.24.0",
   "dependencies": {
     "cartodb-psql": {
       "version": "0.4.0",
@@ -176,9 +176,9 @@
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.6.0.tgz"
     },
     "windshaft": {
-      "version": "0.33.0",
-      "from": "https://github.com/CartoDB/Windshaft/tarball/0.33.0",
-      "resolved": "https://github.com/CartoDB/Windshaft/tarball/0.33.0",
+      "version": "0.34.0",
+      "from": "https://github.com/CartoDB/Windshaft/tarball/0.34.0",
+      "resolved": "https://github.com/CartoDB/Windshaft/tarball/0.34.0",
       "dependencies": {
         "chronograph": {
           "version": "0.1.0",
@@ -369,9 +369,9 @@
                   "resolved": "https://registry.npmjs.org/srs/-/srs-0.4.6.tgz",
                   "dependencies": {
                     "nan": {
-                      "version": "1.4.1",
+                      "version": "1.4.3",
                       "from": "nan@~1.4.1",
-                      "resolved": "https://registry.npmjs.org/nan/-/nan-1.4.1.tgz"
+                      "resolved": "https://registry.npmjs.org/nan/-/nan-1.4.3.tgz"
                     },
                     "node-pre-gyp": {
                       "version": "0.6.1",
@@ -788,9 +788,9 @@
                   "resolved": "https://registry.npmjs.org/zipfile/-/zipfile-0.5.5.tgz",
                   "dependencies": {
                     "nan": {
-                      "version": "1.4.1",
+                      "version": "1.4.3",
                       "from": "nan@~1.4.1",
-                      "resolved": "https://registry.npmjs.org/nan/-/nan-1.4.1.tgz"
+                      "resolved": "https://registry.npmjs.org/nan/-/nan-1.4.3.tgz"
                     },
                     "node-pre-gyp": {
                       "version": "0.6.1",
diff --git a/package.json b/package.json
index e880750c..512c9fd9 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "windshaft-cartodb",
-    "version": "1.23.2",
+    "version": "1.24.0",
     "description": "A map tile server for CartoDB",
     "keywords": [
       "cartodb"
@@ -25,7 +25,7 @@
         "node-varnish": "https://github.com/Vizzuality/node-varnish/tarball/0.3.0",
         "underscore"  : "~1.6.0",
         "dot": "~1.0.2",
-        "windshaft": "https://github.com/CartoDB/Windshaft/tarball/0.33.0",
+        "windshaft": "https://github.com/CartoDB/Windshaft/tarball/0.34.0",
         "step": "~0.0.5",
         "request": "~2.9.203",
         "cartodb-redis": "https://github.com/CartoDB/node-cartodb-redis/tarball/0.11.0",